SurfaceMap › n › nhmmaastricht.nl

nhmmaastricht.nl

Checked 2026-10-22 14:42 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

26 passed 1 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation iNameservers !SOA ✓DNSSEC iRecords

Problems

  • !
    Unusual SOA timers
    SOA · negative caching TTL (minimum) 30s is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 3h, retry 1h, expire 7d, negative TTL 30s.
    #23

Recent checks

!

Full report

Domain & DNS report for nhmmaastricht.nl ›

Mail

fail

26 passed 3 warn 1 failed

Areas

✓SPF ✓DMARC ✗DKIM ✓DNSSEC !MX !TLS iBIMI

Problems

  • ✗
    No DKIM keys published
    DKIM · _domainkey.nhmmaastricht.nl does not exist (NXDOMAIN), so no DKIM keys are published. DKIM helps prevent email spoofing. Configure DKIM with your email service provider.
    #7
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 2a01:8980:1::6 (smtp1.spzl.nl), 2a01:8980:1::6 (smtp2.spzl.nl). Ask your hosting provider to set one.
    #30
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

✗

Full report

Mail report for nhmmaastricht.nl ›